var oneMenuAtATime = 1;  // set this to 0 to disable one submenu at a time behaviour

if (document.getElementById)
{
  document.write('<style type="text/css">\n')
  document.write('#navbar li ul {display: none;}\n')
  document.write('</style>\n')
}

function toggleMenu(obj)
{
  if(document.getElementById)
  {
    var el = document.getElementById(obj);
    if (el.style.display != "block")
    {
	// This bit will close al existing open submenus, disabled for now
	if (oneMenuAtATime)
	{
	    var ar = document.getElementById("navbar").getElementsByTagName("ul"); //DynamicDrive.com change
            for (var i=0; i<ar.length; i++)
	    {
	         ar[i].style.display = "none";
	    }
        }
	el.style.display = "block";
    }
    else
    {
	el.style.display = "none";
    }
  }
}